The Micro is the smallest, most advanced rail mount laser sighting system available. Designed to fit virtually any firearm with an accessory rail, the Micro is perfect for compact and sub-compact pistols used for concealed carry. The ambidextrous tap on/off switches are designed for intentional activation and have been tested to avoid accidental activation and snagging when tucked in a belt. User-adjustable for windage and elevation. Weighs only 0.43 oz. Produces a bright 5mW constant red beam. Over five hours of battery life from a single 1/3N Lithium battery.